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Finding the Fourth Proportional to 213,054.82, 319,625.98 and 63,281.77

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Solution

The fourth proportional to 213,054.82, 319,625.98 and 63,281.77 is: 94,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,054.82 : 319,625.98 = 63,281.77 : x
  2. Step 2: Convert to fraction form
    213,054.82/319,625.98 = 63,281.77/x
  3. Step 3: Cross multiply
    213,054.82x = 319,625.98 × 63,281.77
  4. Step 4: Simplify right side
    213,054.82x = 20,226,497,752.38
  5. Step 5: Solve for x
    x = 20,226,497,752.38/213,054.82
  6. Step 6: Final answer
    x = 94,935.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.